.\"     Title: \fBndb_drop_index\fR
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.70.1 <http://docbook.sf.net/>
.\"      Date: 03/31/2009
.\"    Manual: MySQL Database System
.\"    Source: MySQL 5.1
.\"
.TH "\fBNDB_DROP_INDEX\fR" "1" "03/31/2009" "MySQL 5.1" "MySQL Database System"
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.SH "NAME"
ndb_drop_index \- drop index from an NDB table
.SH "SYNOPSIS"
.HP 23
\fBndb_drop_index \fR\fB\fIoptions\fR\fR
.SH "DESCRIPTION"
.PP
\fBndb_drop_index\fR
drops the specified index from an
NDB
table.
\fIIt is recommended that you use this utility only as an example for writing NDB API applications\fR
\(em see the Warning later in this section for details.
.PP
\fBUsage\fR:
.sp
.RS 3n
.nf
ndb_drop_index \-c \fIconnect_string\fR \fItable_name\fR \fIindex\fR \-d \fIdb_name\fR
.fi
.RE
.PP
The statement shown above drops the index named
\fIindex\fR
from the
\fItable\fR
in the
\fIdatabase\fR.
.PP
\fBAdditional Options\fR: None that are specific to this application.
.sp
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
\fBWarning\fR
.PP
\fIOperations performed on Cluster table indexes using the NDB API are not visible to MySQL and make the table unusable by a MySQL server\fR. If you use this program to drop an index, then try to access the table from an SQL node, an error results, as shown here:
.sp
.RS 3n
.nf
shell> \fB./ndb_drop_index \-c localhost dogs ix \-d ctest1\fR
Dropping index dogs/idx...OK
NDBT_ProgramExit: 0 \- OK
shell> \fB./mysql \-u jon \-p ctest1\fR
Enter password: *******
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with \-A
Welcome to the MySQL monitor.  Commands end with ; or \\g.
Your MySQL connection id is 7 to server version: 5.1.12\-beta\-20060817
Type 'help;' or '\\h' for help. Type '\\c' to clear the buffer.
mysql> SHOW TABLES;
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
| Tables_in_ctest1 |
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
| a                |
| bt1              |
| bt2              |
| dogs             |
| employees        |
| fish             |
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
6 rows in set (0.00 sec)
mysql> SELECT * FROM dogs;
ERROR 1296 (HY000): Got error 4243 'Index not found' from NDBCLUSTER
.fi
.RE
.PP
In such a case, your
\fIonly\fR
option for making the table available to MySQL again is to drop the table and re\-create it. You can use either the SQL statementDROP TABLE
or the
\fBndb_drop_table\fR
utility (see
\fBndb_drop_table\fR(1)) to drop the table.
.SH "COPYRIGHT"
.PP
Copyright 2007\-2008 MySQL AB, 2009 Sun Microsystems, Inc.
.PP
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
.PP
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110\-1301 USA or see http://www.gnu.org/licenses/.
.SH "SEE ALSO"
For more information, please refer to the MySQL Reference Manual,
which may already be installed locally and which is also available
online at http://dev.mysql.com/doc/.
.SH AUTHOR
MySQL AB (http://www.mysql.com/).
